Lectrosonics LMa User Manual download pdf (Page 6)

LMa

LECTROSONICS, INC.

Controls and Functions

Input Jack

The 5-pin (Switchcraft TA5F compatible) input accom-

modates virtually every lavaliere, hand-held or shotgun

microphone available, and most musical instrument

signals. Line level signals can also be accommodated.

(See 5-Pin Input Jack Wiring.)

Power ON/OFF Switch

The Power ON/OFF switch turns the transmitter on and

off. The pilot tone muting system prevents transient

noise (pops, thumps, etc.) from occurring at the receiver

even if the transmitter is abruptly switched on or off.

Power LED

The Power LED glows green when the transmitter is

operating and the battery is good. It turns red when the

battery voltage drops to 6.1 VDC and starts blinking

red when the voltage drops to 5.6 VDC. When using a

recommended lithium or alkaline battery, there will be

about 30 minutes of operating time remaining when the

Power LED ﬁrst begins blinking red.

Note: A weak battery will sometimes cause

the Power LED to glow green, but it will soon

discharge to the point where it will turn red or go

out completely. If in doubt, replace the battery with

a known new battery. If the Power LED fails to

glow when the transmitter is turned on, replace the

battery.

LiPolymer rechargeable batteries give little or no warn-

ing when they are depleted. If you wish to use these

batteries in the transmitter, you will need to manually

keep track of the operating time to prevent interruptions

caused by dead batteries. Start with a fully charged bat-

tery, then measure the time it takes for the Power LED

to go out completely.

Note: A number of Lectrosonics receivers

incorporate a Battery Timer function which tracks

the amount of time the transmitter signal is

detected. See your receiver manual to determine if

this function is available and, if so, the instructions

on measuring the actual run time of the battery.

Frequency Select Switches

Two 16-position rotary Frequency Select Switches, ac-

cessed through the left side panel, are used to adjust

the transmitter’s operating frequency. These switches

are labeled 1.6M and 100K. The 1.6M switch is used for

coarse frequency adjustments and the 100K is used for

ﬁne frequency adjustment.

Modulation LEDs

The Modulation LEDs provide a visual indication of the

input audio signal level from the microphone or musical

instrument. These two bicolor LEDs can glow either red

or green to indicate modulation levels.

The Modulation LEDs are also used to indicate the

Compatibility Mode when the transmitter is initially

turned on. The Modulation LEDs will blink simultane-

ously:

 • Oncefor100Seriesmode

•Twotimesfor200Seriesmode

•Threetimesformode3

•FourtimesforDigitalHybrid(400Series)mode

•FivetimesforIFBmode

•Sixtimesformode6

Audio Level

The AUDIO LEVEL control is used to set the input gain

for the proper modulation.

Antenna

The ﬂexible, insulated galvanized steel cable antenna

supplied with the transmitter is cut to 1/4 wavelength of

the center of the frequency block (the frequency range)

of the transmitter.

Belt Clip

The belt clip may be removed for special applications

by pulling the ends out of the holes in the sides of the

case. An optional hinged belt clip (P/N BCHINGED) is

also available. Contact a Lectrosonics sales represen-

tative, or visit our web site (www.lectrosonics.com) for

more details.

AUDIO LEVEL

control

Power LED

Antenna

Input Jack

Modulation

LEDs

Power

ON/OFF

Belt Clip

Attachment Holes

Frequency Select

Switches

Battery Compartment Door

1 2 3 4 5 6 7 8 9 10 11 ... 19 20

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Lectrosonics LMa User Manual Page 6

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